How can I composite videos?

Can I use the composite nodes on any video in the sequence editor?

Yes you can

That is an efficient answer right there!

The loooooong version would include, make a seperate scene with a Comp node setup that alters your footage as an input. This scene can then be brought into another scene as a strip, or you could render the node scene out and bring that into the VSE as a Strip.

To use video in the nodes compositor requires you to use a Movie type input node.

thanks i got it to work

A video editor is enough for this work!